🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2004 Codes Model Code: TJ 👋 Introduction Market Position Market Position: The 2004 Jeep Wrangler (TJ generation) is a highly capable, iconic off-road vehicle, renowned for its ruggedness and go-anywhere attitude. It competes in the compact SUV/off-road segment, though its pure off-road focus sets it apart. Competitive Analysis Competitors: While fewer direct competitors existed in 2004 with such extreme off-road prowess, it was often cross-shopped with vehicles like the Toyota Tacoma (4x4 variants), Hummer H3 (later models), and more rugged versions of the Ford Explorer or Chevrolet Blazer. Key Features Key Features: Solid front and rear axles, coil spring suspension, iconic 7-slot grille, removable doors and top, robust 4x4 system (Command-Trac or optional Selec-Trac). 📋 Manual Details Coverage Areas Coverage: Complete Workshop Service and Repair Page Count Page Count: Over 1500 pages (estimated) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (likely PDF, often provided as a downloadable file or CD-ROM) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, and overhaul procedures for all engine variants Transmission: Service and repair of manual and automatic transmissions Drivetrain: Transfer case, axles (Dana 30 front, Dana 35 rear standard), driveshafts, U-joints Suspension: Front and rear suspension (coil springs, solid axles), shock absorbers, sway bars Brakes: Hydraulic system, disc/drum configurations, ABS (if equipped), parking brake Steering: Power steering system, steering column, steering linkage Electrical: Complete wiring diagrams, component testing, diagnosis of electrical systems, battery, charging system, starting system Body: Body panel repair, doors, hinges, latches, interior trim, convertible top system HVAC: Heating, ventilation, and air conditioning system diagnosis and repair Emissions: Emissions control systems, catalytic converter, EGR, evaporative emissions Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement Diagnostics: Troubleshooting guides for common and complex issues, diagnostic trouble codes (DTCs) Repair: Step-by-step repair instructions for all major components and systems Overhaul: Complete engine and transmission rebuild procedures Installation: Component installation procedures (e.g., suspension upgrades, brake components) Technical Depth Depth: Comprehensive, covering from basic fluid changes to full drivetrain rebuilds and complex electrical diagnostics. 📊 Manual Specifications File Format File Format: PDF (searchable text, bookmarked sections, high-resolution diagrams) Print Quality Print Quality: High-resolution diagrams and clear, legible text suitable for printing. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Name: 4.0L Inline 6-Cylinder (PowerTech) Engine Displacement: 3952 cc (241 cubic inches) Engine Codes: ERH Engine Configuration: OHV, 12-valve Performance Horsepower: 190 hp @ 4600 rpm Torque: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (Multi-port) Fuel Type: Unleaded gasoline (87 octane recommended) Engine Maintenance Spark Plug Type: Champion Copper Plus (e.g., RC12YC or equivalent) Engine Oil Type: SAE 10W-30 (API SN or higher) Engine Oil Capacity: 5.0 US quarts (4.7 liters) with filter Coolant Type: Mopar OAT (Orange) Antifreeze/Coolant, 5-Year/100,000 Mile Formula Timing Mechanism: Timing Chain (known for durability) 🔧 Transmission Standard Transmission Type: NV3550 5-Speed Manual Transmission Optional Transmission Type: 42RLE 4-Speed Automatic Transmission Features Manual Transmission Fluid: ATF+4 (Mopar specification) or equivalent Automatic Transmission Fluid: ATF+4 (Mopar specification) Transfer Case Fluid: NP241 transfer case: Mopar NV241 Transfer Case Fluid (or Dexron III/Mercon) 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Overall Length: 159.4 inches (4049 mm) Overall Width: 66.5 inches (1689 mm) Overall Height: 70.2 inches (1783 mm) Ground Clearance: Approximately 8-10 inches (depending on tire size) Approach Angle: Approx. 47.7 degrees Departure Angle: Approx. 39.2 degrees Breakover Angle: Approx. 23.7 degrees Weights Curb Weight: Approx. 3,250 - 3,400 lbs (1474 - 1542 kg) Gross Vehicle Weight Rating: Approx. 4,300 lbs (1950 kg) Wheels Tires Standard Wheel Size: 15 x 8 inches Standard Tire Size: 30x9.50R15 Wheel Bolt Pattern: 5 x 4.5 inches (5 x 114.3 mm) 🛡️ Safety Features Ratings NHTSA Rollover Rating: 3 out of 5 stars (2004 model year) Active Features ABS: Available (standard on some trims, optional on others) Passive Features Airbags: Driver and front passenger airbags 💡 Technology Features Infotainment Infotainment System: Basic AM/FM stereo with CD player, optional premium audio, manual climate controls. Driver Assistance Driver Assistance: Limited; primarily focused on core driving and off-road capability. No advanced electronic driver aids like adaptive cruise control or lane keeping assist. Connectivity Connectivity: No integrated Bluetooth or advanced connectivity features typical of modern vehicles. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles (8,000 km) or 6 months, whichever comes first (severe duty may require more frequent changes). Tire Rotation: Every 5,000 miles (8,000 km) Engine Air Filter: Inspect every 15,000 miles (24,000 km), replace as needed. Coolant Flush: Every 5 years or 100,000 miles (160,000 km) Fluid Specifications Brake Fluid: DOT 3 Power Steering Fluid: ATF+4 (Mopar specification) or equivalent Known Issues Common Issues: Frame rust...